David p



(No Model.) D. P. STIRK.

MULTIPLE GASMBURNEB..

No. 593,619. Patented Nov. 16,1897.

. To a/ZZ whom it mayconorrb:

NITED STATES PATnN MULTIPLE GAS-BURNER.

SPECIFICATION forming part of Letters Patent No. 593,619, dated November 16, 1897.

Application1eaApri113, 1s96. sriiNol 587,339. (Nomade.)

Be it known that I, DAVID P. STIRK, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented new andruseful Improvements in Multiple Gas-Bnrners','of which the following isa specification.

My invention'relates to certain new and useful improvements in gas-burners for stoves, particularly cooking-stoves; and it consists in a multiple-chambered burner and an air and gas mixer consisting of independently-operated gas-valves and gas-discharge openings directly opposed to the open ends of said multiple chambers of the burner.

The object of this my invention is to provide a burner that will produce a maximum amount of heat with a minimum consumption of Huid fuel, to provide means whereby the heat may be coniined or concentrated to heat one or` more vessels withoutdissipating the heat throughout the stove, and means whereby the entire burners, consisting of tlpl'e'o'ven` heating burner and the vessel-heating burners, may be caused to burn simultaneously when the full heat-generating capacity of the burners is required in the stove. I attain these objects by means of the burner illustrated in the accompanying drawings, in which similar numbers of reference designate like parts throughou-tthe'several views.

Figure 1 is a longitudinal partly-broken sectional View of the burner. Fig. 2 is a broken plan view of the same. Fig. 3 is an end view vof the valve end of ther-mixer, and Fig. 4 is a transverse sectional view'ofv the mixer.

The burner 1 may be either circular or oval in form in cross-section and is divided into four compartments by the separating or dior other accumulations entering through said l apertures into said compartments and obstructing the compartments of said burners. The pe'rforations or apertures 4 are ar- The ledge or rib 3.

r ranged, preferably, in single horizontal rows y directly under and close to the guard-ledges or ribs 3,`and the number and'size or diameter of said apertures may be arranged in proportion to thequantity of gas required to be used or the greate'stintensity of combustion required. g y p Each'of the upper compartments of the burner 1 is connected directly to its burners 5 or 5a by suitable pipe-nipples 6, screwed into said burners 5 and'fL andinto the bosses 7, forn)1ed integral on the burner 1. (See Fig. 4.

The burners 5 and 5a are composed of an exterior guard or cylindrical funnel, on the top edges of which are formed the prongs 8, on the ends of which cooking vessels maybe placed and supported. In the exterior of these cylindrical funnels are formed, centrally therewith, the base-nipples Y9, which project or extend upwardly slightly from the interior base of said funnel. Y 1

The burner-caps 10 are closed`at their top ends and have the anges 11 formed integral on their upper peripheral edges and directly above the perforations 12, said burner-caps adapted to receive loosely the base-nipples 9, by which they are held centrally in the interior of said funnels 5 and 5a.

The mixer is composed of the socket portion 13, into which is iitted and removably secured the end of the longitudinal burner 1 and held therein by the set-screw 14 and the bulbous air-mixer 15, having the air-inlet openingsV 16 and the gas compartment or chamber 17, all of which are formed in one integral casting. .On the exterior surface of the dividing-wall ofv the gas-chamber 17 are formed the nipples 18, which are each drilled with a fine perforation, each of said nippleperforations being closed by a needle-valve 19, which is screwed into the stuffing-box 20, securely screwed into the outer wall of the gas-chamber 17. The stuffing-boxes 2O are threaded at their ends to receive the sleeveglands 2l, which completely inclose Ithe key ends of the needle-valves 19.

' The gas to be consumed is supplied to the gaschamber 17 by means of the supply-pipe 22, screwed securely into the boss 23, formed integral with said chamber.

When it is desirable to use only one of the IOO burners, as the burner 5, which is nearest the feed end or mixer of the burner 1, the needle- Valve 19, corresponding with and directly opposite the gas-feeding compartment of said burner 5, is turned open to supply the gas thereto, and the said burner is ignited without igniting the other burners. In the same manner the second burner 5 may also be used independently of the other burners. It is also clear that either of the front compartments of the longitudinal burner may be independently ignited-as, for instance, when it is required to use the rear compartment or section of the burner l to heat the oven of the stove this side of the burner may be used alone, similarly with the front portion of the said burner l, and when the full heating capacity of the burner is required the top burners 5 and 5a maybeignited in connection with the front and rear burners of the longitudinal burner l. It is clear that with a burner of this kind the intensity of the heat may be modilied, reduced, and concentrated when so required, which is most desirable in hot summer weather. It is also clear that the bottom vertical partition dividing the lower portion of the tube l into two compartments may be omitted, thus providing a single lower compartment which may be equipped with a single gas-supply opening and Valve for the closing of the same, thereby simplifying the construction of the burner and providinga means whereby both series of orilices in the lower compartment may be ignited simultaneously by the use of the single Valve.

Having thus fully described the nature of my invention, what I claim as new and useful, and desire to cover by Letters Patent of the United States therefor, is-

l. In a gas-burner for cooking-stoves, the combination of a tube divided longitudinally into a plurality of compartments, two of said compartments being situated in the upper part of said tube, and the remaining compartment or compartments being located in the lower part of said tube, said lower compartment or compartments provided with burnerorifices on opposite sides, and all of said compartments having their ends closed, an auxiliary burner communicating with each of said upper compartments, and means whereby the gaseous fuel is supplied to each compartment independently, substantially as and for the purpose set forth. t

2. In a gas-burner for cooking-stoves, the combination of a tube divided longitudinally into a plurality of compartments, two of said compartments being situated in the upper part of said tube, and the remaining compartment or compartments being located in the lower part of said tube, said lower compartment or compartments being provided with burner-orifices on opposite sides, and all of said compartments having their ends closed, longitudinally-extending iianges projecting over said burner-orifices, an auxiliary burner communicating with each of said upper compartments, and means whereby the gaseous fuel is supplied to each compartment independently, substantially as and for the purpose set forth.

3. In a gas-burner for cooking-stoves, comprising a main burner subdivided into four longitudinally-extendingcompartments,each of the upper compartments of which is connected directly to an independent gas-burner, a bulbous air and gas mixing chamber detachably secured to the end of said burner, a gas-chamber integral with said gas-mixing chamber, and suitable independently-operated valves connected to said gas-chamber whereby the gas is discharged through said mixing-chamber into said burner-compartments, substantially as and for the purpose set forth.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

DAVID P. STIRK. lVitnesses:

THoMrsoN R. BELL, M. M. DEFREES. 

